| article html file updated | 9 February 2020 10:34 CET | Update | https://www.mdpi.com/1996-1073/11/4/692 |
| article html file updated | 1 October 2019 19:28 CEST | Update | - |
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| article xml uploaded. | 21 March 2018 03:30 CET | Original file | https://www.mdpi.com/1996-1073/11/4/692/xml |
| article pdf uploaded. | 21 March 2018 03:30 CET | Version of Record | https://www.mdpi.com/1996-1073/11/4/692/pdf |
